<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>springBoot + webSocket + 广播式</title>>
</head>
<body onload="disconnect()">
<noscript>
    <h2 style="color: #ff0000"> 貌似你的浏览器不支持 websocket</h2>
</noscript>
<div>
    <button id="connect" onclick="connect();"> 链接</button>
    <button id="disconnect" disabled="disabled" onclick="disconnect();"> 断开链接</button>
</div>
<div id="conversationDiv">
    <label>输入你的名字：</label>
    <input type="text" id="name"/>
    <button id="sendName" onclick="sendName();"> 发送</button>
    <p id="response"></p>
</div>
<script th:src="@{stomp/sockjs.min.js}"></script>
<script th:src="@{stomp/stomp.min.js}"></script>
<script th:src="@{jquery-3.2.1.js}"></script>
<script type="text/javascript">
    var stompClient = null;
    function setConnected(connected) {
        document.getElementById('connect').disabled = connected;
        document.getElementById('disconnect').disabled = !connected;
        document.getElementById('conversationDiv').style.visibility = connected ? 'visible' : 'hidden';
        $('#response').html();
    }

    function connect() {
        var socket = new SockJS('/endpointZbcn'); //1
        stompClient = Stomp.over(socket);
        stompClient.connect({}, function(frame) {
            setConnected(true);
            console.log('Connected: ' + frame);
            stompClient.subscribe('/topic/getResponse', function(respnose){ //2
                showResponse(JSON.parse(respnose.body).responseMessage);
            });
        });
    }

    function disconnect() {
        if (stompClient != null) {
            stompClient.disconnect();
        }
        setConnected(false);
        console.log("Disconnected");
    }
    function sendName() {
        var name = $('#name').val();
        //3
        stompClient.send("/welcome", {}, JSON.stringify({ 'name': name }));
    }
    function showResponse(message) {
        var response = $("#response");
        response.html(message);
    }
</script>
</body>
</html>